36 PROCEEDINGS OF THE NATIONAL MUSEUM vol.78 



prising distinctly less than two-thirds total width of head; face 

 shallowly impressed each side of middle; clypeus in profile only 

 moderately prominent ; malar space slightly longer than basal width 

 of mandible; occipital carira parallel with posterior margin of eye, 

 prominent below and separated by a rather deep narrow notch from 

 hypostomal carina, latter moderately high; temples oblique, flat, 

 somewhat less than half as broad as short diameter of eye ; diameter 

 of lateral ocellus three-fourths ocell-ocular line and more than twice 

 postocellar line; flagellum slender, basal joint about eight times as 

 long as thick at apex. Thorax polished, practically Avithout sculp- 

 ture; pronotum strongly tumid on dorsal margin, lateral anterior 

 margin with a high carina, epomia absent ; mesoscutal lobes high, the 

 lateral lobes slightly flattened; scutellum moderately high, com- 

 pressed ; mesopleural furrow distinctly, prepectal furrow not, f oveo- 

 late, subalar tubercle low, smooth, not carinate; metapleurum very 

 faintly roughened along middle; propodeum polished with a few 

 obscure arcuate carinae on apical slope, basal middle deeply im- 

 pressed, with a low rounded elevation on each side, spiracles rather 

 small, narrowly oval, basal carina straight medially, apophyses 

 rather long, conical, curved, placed distinctly closer to carina than 

 to apex ; hind femur very slender, only slightly thickened in middle ; 

 inner calcarium barely more than a third as long as basitarsus; 

 areolet of normal size and form with recurrent interstitial, nervulus 

 antefurcal, postnervulus broken slightly below middle, nervellus 

 broken at lower third. Abdomen slender, rather strongly com- 

 pressed at apex, inconspicuously hairy; postpetiole hardly twice as 

 broad as petiole ; second tergite about four times as long as broad at 

 base and very nearly as long as first ; sheath more than twice as long 

 as first tergite and somewhat longer than hind tibia. 



Head black and white, face, clypeus except apex, orbits except 

 an interruption behind eyes above, mandibles, palpi, and annulus 

 beginning at base of sixth flagellar joint (only eight joints present) 

 white ; thorax black, the following yellowish white : Upper and 

 lower anterior margins of pronotum, propleura at apex, two narrow 

 lines on pronotum, scutellar carinae and apices of scutellum and post- 

 scutellum, mesopleurum largely (the anterior and posterior margins 

 and streaks in the impressions which divide the yellow nearly into 

 three separate spots are black), an elongate spot at side of sternum, 

 upper and lower divisions of metapleurum (furrow black), tops of 

 the basal elevations on propodeum, apophyses and a stripe extend- 

 ing from each apophysis to posterior margin and a narrow, oblique 

 lateral line from base of apophysis; mesosternum and metasternum 

 ferruginous ; coxae ferruginous, the anterior pair darker with a white 

 stripe anteriorly, middle coxa faintly whitish above ; front trochanter 



